Rob Rapley is the director/producer/writer for "Flood in the Desert," an American Experience documentary that tells the story of the 233 mile-long aqua duct for transporting much-needed water to the Los Angeles area. It was opened amidst much fanfare. Sadly, the residents of LA had a mistaken sense of abundance of water, and their use skyrocketed. Eventually, a number of dams were built in the effort. The collapse of one of them, the St. Francis Dam, was one of the worst civil engineering disasters in our nation's history.